The invention discloses a
system and method for monitoring the operation state of an
elevator car. The
system comprises an
elevator car operation state intelligent sensing unit, a
signal acquiring and
processing unit and a
wireless communication unit. The method comprises the following steps of: sensing an accelerated speed of the
elevator car and / or sensing a distance between the elevator car and a certain fixed reference
system in a shaft; acquiring an accelerated speed
signal of the elevator car and / or a distance
signal between the elevator car and the certain fixed reference system in the shaft; carrying out state calculation and
processing to obtain real-time operation state parameters of the elevator car; and carrying out intelligent monitoring
algorithm and intelligent identification
algorithm according to the real-time operation state parameters to obtain the real-time operation state of the elevator car. The system and method disclosed by the invention can judge the real-time operation direction (ascending, stopping and descending) of an elevator and judge whether the elevator operates at an over speed through intelligent monitoring, identification and
estimation; the real-time flat
bed floor number of the elevator car or the distance from the normal flat
bed position of a certain floor layer can be obtained to intelligently identify the fault stopping of the elevator and an overhauling state; and the system and the method can evaluate the comfort level of the elevator, estimate the elevator risk, predicate faults and the like.